Button assembly



FIG. 1 is a top plan view of a button assembly showing our new design;

FIG. 2 is a front perspective view of our new design;

FIG. 3 is a rear perspective view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a rear view thereof; and,

FIG. 8 is a bottom view thereof.

The broken line portion of the figure drawings is included to show unclaimed subject matter only and forms no part of the claimed design. 

We claim the ornamental design for a button assembly, as shown and described. 